Comparison of automated vs. manual QuEChERS extraction
In this study, a fully automated QuEChERS system was used to extract 204 different pesticides from various commodities. The matrices used for this evaluation were cabbage, valencia orange, raisin and purple corn flour. The performance of the Teledyne Tekmar AutoMate-Q40 automated QuEChERS platform was evaluated in comparison to a manual sample preparation workflow. Both preparations employed the AOAC 2007.01 unbuffered QuEChERS methodology, where all the samples were analyzed using liquid chromatographytandem mass spectrometry (LC-MS/MS).